L.Control.MousePosition = L.Control.extend({
	options: {
		position: 'bottomright',
		separator: '  ',
		emptyString: '',
		lngFirst: true,
		numDigits: 5,
		lngFormatter: undefined,
		latFormatter: undefined,
		prefix: ""
	},

	onAdd: function(map) {
		this._container = L.DomUtil.create('div', 'leaflet-control-mouseposition');
		L.DomEvent.disableClickPropagation(this._container);
		map.on('mousemove', this._onMouseMove, this);
		this._container.innerHTML = this.options.emptyString;
		return this._container;
	},

	onRemove: function(map) {
		map.off('mousemove', this._onMouseMove)
	},

	_onMouseMove: function(e) {
		var lng = this.options.lngFormatter ? this.options.lngFormatter(e.latlng.lng) : L.Util.formatNum(e.latlng.lng, this.options.numDigits);
		lng = "经度：" + lng;
		var lat = this.options.latFormatter ? this.options.latFormatter(e.latlng.lat) : L.Util.formatNum(e.latlng.lat, this.options.numDigits);
		lat = "纬度：" + lat;
		var value = this.options.lngFirst ? lng + this.options.separator + lat : lat + this.options.separator + lng;
		var prefixAndValue = this.options.prefix + ' ' + value;
		this._container.innerHTML = prefixAndValue;
	}

});

L.Map.mergeOptions({
	positionControl: false
});

L.Map.addInitHook(function() {
	if(this.options.positionControl) {
		this.positionControl = new L.Control.MousePosition();
		this.addControl(this.positionControl);
	}
});

L.control.mousePosition = function(options) {
	return new L.Control.MousePosition(options);
};